Question

What may have helped horses change over the last 40 million years? A) an increase in their height and weight B) the coming and going of several ice ages C) a change in their food, from trees to grass in the Great Plains D) being captured by Indians and used for work, pulling wagons and riding

Answer 1

a change in their food, from trees to grass in the Great Plains

Answer 2

A change in their food, from trees to grass in the Great Plains.